Process for smelting metallic ores.



I No Drawing.

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OTTO BALTIN, LIPINE, GERMANY.

PROCESS FOR SMELTING METALLIC CREE.

To all whom it may concern:

Be it known that I, O'r'ro BALTIN, a citi- Zen of Germany, and resident of Lipine,

Silesia, Germany, have invented certain new and useful Improvements in Processes for smelting Metallic Ores, of which the following is a specification, such as will enable others skilled in the art to which it apper; tains to make and use the same.

The pr'ocess of smelting metallic ores which are pressed into the form of bricks,

as known, effected in muifie charges, and.

owing .to the use of pitch as a binding agent in the manufacture of these bricks, obnoxious pitch vapors are caused to rise during the process of smelting which often trouble the workmen to such an extent that they find it impossible to properly perform their 1 work in attending to the furnace.

According to this invention this drawback is removed or at least greatly reduce by the employment of other binding agents which" bind quickly and satisfactorily either by themselves or in conjunction with a moderate quantity of pitch. Thus the employment of pitch and the drawback result ing therefrom are either entirely dispensed Specification of Letters Patent.

Patented Dec. as, 1915.

. I Application filed May 28, 1914.. Serial No. 841,576. I

in the manufacture of metallic ore bricks: According to the invention gypsum may be used either by itself or with an addition of pitch. Gypsum is a binding agent which 'Works very quickly and it is theieforepartirained when the latter are subjected to the heat in the furnace.

Thus a muffle charge of bricks in which gypsum has been used as a binding agent can be very easily worked 05 in the furnaces.

.In such cases where celc pitch is used as a binding agent, an addition of gypsum will be found extremely useful. Ordinarily celc pitch is hygroscopic and bricks in which celc pitch only has been used as a binding agent are not weather proof. An addition of gypsum, however, reduces the hygroscopic nature of the celc pitch and thus increases the weatherproofness of the bricks very considerably.

Gypsum by itself may also be advanta geously used asabinding agent in the manufacture of bricks from metallic ores without any addition whatever of pitch or celc pitch.

What claim and desire to secure by Letters Patent is 1. A briquet comprising a compressed ,mixture of ore, gypsum and pitch.

ERNST BLInMs. 

